./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e99154d55f7fd098c0e840b496605adea5c7214bf70234e7c54dceeadfa306b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:05:23,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:05:23,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:05:23,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:05:23,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:05:23,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:05:23,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:05:23,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:05:23,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:05:23,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:05:23,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:05:23,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:05:23,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:05:23,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:05:23,377 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:05:23,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:05:23,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:05:23,378 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:05:23,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:05:23,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:05:23,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:05:23,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:05:23,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:05:23,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:05:23,384 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:05:23,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:05:23,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:05:23,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:05:23,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:05:23,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:05:23,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:05:23,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:05:23,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:23,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:05:23,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:05:23,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:05:23,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:05:23,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:05:23,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:05:23,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:05:23,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:05:23,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:05:23,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e99154d55f7fd098c0e840b496605adea5c7214bf70234e7c54dceeadfa306b [2024-11-08 19:05:23,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:05:23,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:05:23,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:05:23,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:05:23,731 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:05:23,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c Unable to find full path for "g++" [2024-11-08 19:05:25,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:05:26,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:05:26,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2024-11-08 19:05:26,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/data/350a065c0/29362e8df4b94bd5a00f9ff308956e2e/FLAG1eae41a34 [2024-11-08 19:05:26,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/data/350a065c0/29362e8df4b94bd5a00f9ff308956e2e [2024-11-08 19:05:26,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:05:26,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:05:26,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:26,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:05:26,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:05:26,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f69801c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26, skipping insertion in model container [2024-11-08 19:05:26,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:05:26,390 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c[12751,12764] [2024-11-08 19:05:26,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:26,405 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:05:26,498 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c[12751,12764] [2024-11-08 19:05:26,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:26,530 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:05:26,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26 WrapperNode [2024-11-08 19:05:26,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:26,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:26,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:05:26,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:05:26,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,584 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 384 [2024-11-08 19:05:26,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:26,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:05:26,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:05:26,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:05:26,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,618 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:05:26,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:05:26,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:05:26,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:05:26,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:05:26,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (1/1) ... [2024-11-08 19:05:26,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:26,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:26,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:05:26,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:05:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:05:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:05:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:05:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:05:26,853 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:05:26,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:05:27,474 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2024-11-08 19:05:27,475 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:05:27,496 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:05:27,496 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:05:27,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:27 BoogieIcfgContainer [2024-11-08 19:05:27,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:05:27,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:05:27,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:05:27,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:05:27,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:05:26" (1/3) ... [2024-11-08 19:05:27,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54801255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:27, skipping insertion in model container [2024-11-08 19:05:27,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:26" (2/3) ... [2024-11-08 19:05:27,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54801255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:27, skipping insertion in model container [2024-11-08 19:05:27,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:27" (3/3) ... [2024-11-08 19:05:27,509 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2024-11-08 19:05:27,528 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:05:27,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:05:27,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:05:27,633 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d224645, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:05:27,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:05:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 101 states have (on average 1.7425742574257426) internal successors, (176), 102 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:27,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 19:05:27,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:27,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:27,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:27,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:27,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1582208676, now seen corresponding path program 1 times [2024-11-08 19:05:27,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:27,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39085607] [2024-11-08 19:05:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:27,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:28,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:28,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39085607] [2024-11-08 19:05:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39085607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:28,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:28,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:05:28,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268221859] [2024-11-08 19:05:28,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:28,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:05:28,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:05:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:05:28,151 INFO L87 Difference]: Start difference. First operand has 103 states, 101 states have (on average 1.7425742574257426) internal successors, (176), 102 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:28,188 INFO L93 Difference]: Finished difference Result 169 states and 282 transitions. [2024-11-08 19:05:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:05:28,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-08 19:05:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:28,202 INFO L225 Difference]: With dead ends: 169 [2024-11-08 19:05:28,202 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 19:05:28,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:05:28,208 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:28,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 19:05:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-08 19:05:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.7244897959183674) internal successors, (169), 98 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 169 transitions. [2024-11-08 19:05:28,247 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 169 transitions. Word has length 34 [2024-11-08 19:05:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:28,248 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 169 transitions. [2024-11-08 19:05:28,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 169 transitions. [2024-11-08 19:05:28,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 19:05:28,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:28,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:28,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:05:28,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash -196005282, now seen corresponding path program 1 times [2024-11-08 19:05:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986528481] [2024-11-08 19:05:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986528481] [2024-11-08 19:05:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986528481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:28,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:28,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:05:28,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865294875] [2024-11-08 19:05:28,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:28,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:05:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:05:28,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:28,616 INFO L87 Difference]: Start difference. First operand 99 states and 169 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:28,733 INFO L93 Difference]: Finished difference Result 164 states and 272 transitions. [2024-11-08 19:05:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:05:28,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-08 19:05:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:28,736 INFO L225 Difference]: With dead ends: 164 [2024-11-08 19:05:28,736 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 19:05:28,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:05:28,738 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:28,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 631 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:28,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 19:05:28,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-08 19:05:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 137 transitions. [2024-11-08 19:05:28,748 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 137 transitions. Word has length 34 [2024-11-08 19:05:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:28,749 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 137 transitions. [2024-11-08 19:05:28,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 137 transitions. [2024-11-08 19:05:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 19:05:28,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:28,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:28,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:05:28,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:28,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:28,753 INFO L85 PathProgramCache]: Analyzing trace with hash 899298089, now seen corresponding path program 1 times [2024-11-08 19:05:28,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:28,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032068967] [2024-11-08 19:05:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:28,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:28,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032068967] [2024-11-08 19:05:28,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032068967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:28,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:28,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724365319] [2024-11-08 19:05:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:28,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:28,923 INFO L87 Difference]: Start difference. First operand 99 states and 137 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:28,975 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2024-11-08 19:05:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-08 19:05:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:28,981 INFO L225 Difference]: With dead ends: 213 [2024-11-08 19:05:28,981 INFO L226 Difference]: Without dead ends: 152 [2024-11-08 19:05:28,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:28,982 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 82 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:28,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-08 19:05:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2024-11-08 19:05:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.476510067114094) internal successors, (220), 149 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2024-11-08 19:05:28,999 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 65 [2024-11-08 19:05:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:28,999 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2024-11-08 19:05:29,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2024-11-08 19:05:29,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 19:05:29,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:29,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:29,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:05:29,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:29,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash 299980650, now seen corresponding path program 1 times [2024-11-08 19:05:29,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:29,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751668691] [2024-11-08 19:05:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:29,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:29,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751668691] [2024-11-08 19:05:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751668691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376477137] [2024-11-08 19:05:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:29,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:29,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:29,208 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:29,252 INFO L93 Difference]: Finished difference Result 358 states and 556 transitions. [2024-11-08 19:05:29,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:29,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-08 19:05:29,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:29,254 INFO L225 Difference]: With dead ends: 358 [2024-11-08 19:05:29,258 INFO L226 Difference]: Without dead ends: 246 [2024-11-08 19:05:29,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:29,260 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 78 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:29,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 297 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-08 19:05:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2024-11-08 19:05:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.5267489711934157) internal successors, (371), 243 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 371 transitions. [2024-11-08 19:05:29,292 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 371 transitions. Word has length 65 [2024-11-08 19:05:29,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:29,292 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 371 transitions. [2024-11-08 19:05:29,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 371 transitions. [2024-11-08 19:05:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 19:05:29,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:29,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:29,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:05:29,299 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:29,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1478411307, now seen corresponding path program 1 times [2024-11-08 19:05:29,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:29,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700558490] [2024-11-08 19:05:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:29,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700558490] [2024-11-08 19:05:29,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700558490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:29,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:29,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946487915] [2024-11-08 19:05:29,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:29,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:29,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:29,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:29,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:29,601 INFO L87 Difference]: Start difference. First operand 244 states and 371 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:29,812 INFO L93 Difference]: Finished difference Result 1480 states and 2369 transitions. [2024-11-08 19:05:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:29,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-08 19:05:29,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:29,819 INFO L225 Difference]: With dead ends: 1480 [2024-11-08 19:05:29,820 INFO L226 Difference]: Without dead ends: 1274 [2024-11-08 19:05:29,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:29,825 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1370 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:29,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 983 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-11-08 19:05:29,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 448. [2024-11-08 19:05:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.5548098434004474) internal successors, (695), 447 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 695 transitions. [2024-11-08 19:05:29,888 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 695 transitions. Word has length 65 [2024-11-08 19:05:29,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:29,889 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 695 transitions. [2024-11-08 19:05:29,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 695 transitions. [2024-11-08 19:05:29,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 19:05:29,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:29,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:29,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:05:29,894 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:29,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1797213023, now seen corresponding path program 1 times [2024-11-08 19:05:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:29,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557935242] [2024-11-08 19:05:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:29,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:30,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:30,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557935242] [2024-11-08 19:05:30,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557935242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:30,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:30,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:05:30,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997700482] [2024-11-08 19:05:30,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:30,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:05:30,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:30,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:05:30,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:05:30,367 INFO L87 Difference]: Start difference. First operand 448 states and 695 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:30,429 INFO L93 Difference]: Finished difference Result 474 states and 728 transitions. [2024-11-08 19:05:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:05:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 19:05:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:30,432 INFO L225 Difference]: With dead ends: 474 [2024-11-08 19:05:30,432 INFO L226 Difference]: Without dead ends: 472 [2024-11-08 19:05:30,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:05:30,433 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:30,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 905 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-08 19:05:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-08 19:05:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.526539278131635) internal successors, (719), 471 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 719 transitions. [2024-11-08 19:05:30,450 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 719 transitions. Word has length 66 [2024-11-08 19:05:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:30,450 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 719 transitions. [2024-11-08 19:05:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,451 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 719 transitions. [2024-11-08 19:05:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 19:05:30,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:30,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:30,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:05:30,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:30,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash 173549763, now seen corresponding path program 1 times [2024-11-08 19:05:30,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:30,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682399811] [2024-11-08 19:05:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:30,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:30,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682399811] [2024-11-08 19:05:30,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682399811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:30,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:30,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:30,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871080024] [2024-11-08 19:05:30,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:30,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:30,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:30,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:30,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:30,560 INFO L87 Difference]: Start difference. First operand 472 states and 719 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:30,596 INFO L93 Difference]: Finished difference Result 1280 states and 1981 transitions. [2024-11-08 19:05:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:30,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 19:05:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:30,601 INFO L225 Difference]: With dead ends: 1280 [2024-11-08 19:05:30,602 INFO L226 Difference]: Without dead ends: 846 [2024-11-08 19:05:30,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:30,604 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 63 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:30,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 233 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-08 19:05:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2024-11-08 19:05:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 1.531435349940688) internal successors, (1291), 843 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1291 transitions. [2024-11-08 19:05:30,635 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1291 transitions. Word has length 67 [2024-11-08 19:05:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:30,637 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1291 transitions. [2024-11-08 19:05:30,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1291 transitions. [2024-11-08 19:05:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 19:05:30,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:30,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:30,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:05:30,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:30,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -259589822, now seen corresponding path program 1 times [2024-11-08 19:05:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:30,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024064174] [2024-11-08 19:05:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:30,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024064174] [2024-11-08 19:05:30,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024064174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:30,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:30,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:30,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548857766] [2024-11-08 19:05:30,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:30,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:30,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:30,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:30,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:30,739 INFO L87 Difference]: Start difference. First operand 844 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:30,784 INFO L93 Difference]: Finished difference Result 1651 states and 2545 transitions. [2024-11-08 19:05:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 19:05:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:30,789 INFO L225 Difference]: With dead ends: 1651 [2024-11-08 19:05:30,789 INFO L226 Difference]: Without dead ends: 1217 [2024-11-08 19:05:30,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:30,795 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:30,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 310 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-08 19:05:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1215. [2024-11-08 19:05:30,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1214 states have (on average 1.527182866556837) internal successors, (1854), 1214 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1854 transitions. [2024-11-08 19:05:30,833 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1854 transitions. Word has length 67 [2024-11-08 19:05:30,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:30,833 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1854 transitions. [2024-11-08 19:05:30,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:30,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1854 transitions. [2024-11-08 19:05:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 19:05:30,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:30,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:30,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:05:30,835 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:30,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:30,835 INFO L85 PathProgramCache]: Analyzing trace with hash 50964826, now seen corresponding path program 1 times [2024-11-08 19:05:30,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:30,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591031207] [2024-11-08 19:05:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:30,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:30,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:30,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591031207] [2024-11-08 19:05:30,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591031207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:30,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:30,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:30,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140846674] [2024-11-08 19:05:30,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:30,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:30,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:30,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:30,935 INFO L87 Difference]: Start difference. First operand 1215 states and 1854 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:31,009 INFO L93 Difference]: Finished difference Result 3371 states and 5144 transitions. [2024-11-08 19:05:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:31,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 19:05:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:31,019 INFO L225 Difference]: With dead ends: 3371 [2024-11-08 19:05:31,019 INFO L226 Difference]: Without dead ends: 2197 [2024-11-08 19:05:31,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:31,022 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 70 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:31,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 291 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2024-11-08 19:05:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2195. [2024-11-08 19:05:31,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2194 states have (on average 1.5068368277119417) internal successors, (3306), 2194 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3306 transitions. [2024-11-08 19:05:31,099 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3306 transitions. Word has length 68 [2024-11-08 19:05:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:31,100 INFO L471 AbstractCegarLoop]: Abstraction has 2195 states and 3306 transitions. [2024-11-08 19:05:31,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3306 transitions. [2024-11-08 19:05:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 19:05:31,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:31,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:31,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:05:31,104 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:31,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1749724102, now seen corresponding path program 1 times [2024-11-08 19:05:31,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:31,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268986593] [2024-11-08 19:05:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:31,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:31,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:31,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268986593] [2024-11-08 19:05:31,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268986593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:31,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:31,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723629235] [2024-11-08 19:05:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:31,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:31,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:31,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:31,196 INFO L87 Difference]: Start difference. First operand 2195 states and 3306 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:31,295 INFO L93 Difference]: Finished difference Result 6119 states and 9164 transitions. [2024-11-08 19:05:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 19:05:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:31,310 INFO L225 Difference]: With dead ends: 6119 [2024-11-08 19:05:31,310 INFO L226 Difference]: Without dead ends: 3965 [2024-11-08 19:05:31,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:31,317 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 74 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:31,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:31,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-08 19:05:31,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3963. [2024-11-08 19:05:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 1.4765270065623421) internal successors, (5850), 3962 states have internal predecessors, (5850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 5850 transitions. [2024-11-08 19:05:31,478 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 5850 transitions. Word has length 68 [2024-11-08 19:05:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:31,478 INFO L471 AbstractCegarLoop]: Abstraction has 3963 states and 5850 transitions. [2024-11-08 19:05:31,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 5850 transitions. [2024-11-08 19:05:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:05:31,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:31,482 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:31,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:05:31,482 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:31,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -98740906, now seen corresponding path program 1 times [2024-11-08 19:05:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:31,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481535400] [2024-11-08 19:05:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:31,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481535400] [2024-11-08 19:05:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481535400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:31,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:31,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:31,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871293493] [2024-11-08 19:05:31,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:31,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:31,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:31,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:31,698 INFO L87 Difference]: Start difference. First operand 3963 states and 5850 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:31,811 INFO L93 Difference]: Finished difference Result 7887 states and 11660 transitions. [2024-11-08 19:05:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 19:05:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:31,825 INFO L225 Difference]: With dead ends: 7887 [2024-11-08 19:05:31,826 INFO L226 Difference]: Without dead ends: 3965 [2024-11-08 19:05:31,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:31,831 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 67 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:31,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 297 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-08 19:05:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3963. [2024-11-08 19:05:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 1.464411913175164) internal successors, (5802), 3962 states have internal predecessors, (5802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 5802 transitions. [2024-11-08 19:05:31,978 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 5802 transitions. Word has length 95 [2024-11-08 19:05:31,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:31,979 INFO L471 AbstractCegarLoop]: Abstraction has 3963 states and 5802 transitions. [2024-11-08 19:05:31,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:31,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 5802 transitions. [2024-11-08 19:05:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:05:31,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:31,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:31,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:05:31,982 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:31,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1583764395, now seen corresponding path program 1 times [2024-11-08 19:05:31,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:31,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26850288] [2024-11-08 19:05:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:31,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:32,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:32,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26850288] [2024-11-08 19:05:32,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26850288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:32,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:32,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811174] [2024-11-08 19:05:32,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:32,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:32,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:32,217 INFO L87 Difference]: Start difference. First operand 3963 states and 5802 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:32,312 INFO L93 Difference]: Finished difference Result 5927 states and 8684 transitions. [2024-11-08 19:05:32,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:32,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 19:05:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:32,319 INFO L225 Difference]: With dead ends: 5927 [2024-11-08 19:05:32,319 INFO L226 Difference]: Without dead ends: 2005 [2024-11-08 19:05:32,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:32,324 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 61 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:32,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 278 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:32,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2024-11-08 19:05:32,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 2003. [2024-11-08 19:05:32,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 2002 states have (on average 1.4475524475524475) internal successors, (2898), 2002 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2898 transitions. [2024-11-08 19:05:32,399 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2898 transitions. Word has length 95 [2024-11-08 19:05:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:32,399 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2898 transitions. [2024-11-08 19:05:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2898 transitions. [2024-11-08 19:05:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:05:32,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:32,401 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:32,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:05:32,402 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:32,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1197516076, now seen corresponding path program 1 times [2024-11-08 19:05:32,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:32,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047146815] [2024-11-08 19:05:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:32,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:05:32,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:32,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047146815] [2024-11-08 19:05:32,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047146815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:32,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208499475] [2024-11-08 19:05:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:32,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:32,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:32,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:32,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:05:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:32,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 19:05:32,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:33,918 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:35,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208499475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:35,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:35,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 13, 10] total 23 [2024-11-08 19:05:35,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189419482] [2024-11-08 19:05:35,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:35,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:05:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:35,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:05:35,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:05:35,189 INFO L87 Difference]: Start difference. First operand 2003 states and 2898 transitions. Second operand has 23 states, 23 states have (on average 11.73913043478261) internal successors, (270), 23 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:36,582 INFO L93 Difference]: Finished difference Result 8012 states and 11567 transitions. [2024-11-08 19:05:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:05:36,584 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.73913043478261) internal successors, (270), 23 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 19:05:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:36,602 INFO L225 Difference]: With dead ends: 8012 [2024-11-08 19:05:36,603 INFO L226 Difference]: Without dead ends: 6050 [2024-11-08 19:05:36,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=479, Invalid=1161, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:05:36,608 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 3351 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:36,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 2045 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:05:36,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2024-11-08 19:05:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 6026. [2024-11-08 19:05:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6025 states have (on average 1.4262240663900414) internal successors, (8593), 6025 states have internal predecessors, (8593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 8593 transitions. [2024-11-08 19:05:36,866 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 8593 transitions. Word has length 95 [2024-11-08 19:05:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:36,866 INFO L471 AbstractCegarLoop]: Abstraction has 6026 states and 8593 transitions. [2024-11-08 19:05:36,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.73913043478261) internal successors, (270), 23 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:36,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 8593 transitions. [2024-11-08 19:05:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:05:36,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:36,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:36,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:05:37,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:37,075 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:37,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1483624192, now seen corresponding path program 1 times [2024-11-08 19:05:37,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:37,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3286842] [2024-11-08 19:05:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:05:37,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3286842] [2024-11-08 19:05:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3286842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:37,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:37,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041744624] [2024-11-08 19:05:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:37,349 INFO L87 Difference]: Start difference. First operand 6026 states and 8593 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:38,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:38,051 INFO L93 Difference]: Finished difference Result 21031 states and 30163 transitions. [2024-11-08 19:05:38,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:38,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 19:05:38,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:38,114 INFO L225 Difference]: With dead ends: 21031 [2024-11-08 19:05:38,115 INFO L226 Difference]: Without dead ends: 18029 [2024-11-08 19:05:38,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:38,121 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 866 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:38,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1215 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:38,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18029 states. [2024-11-08 19:05:38,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18029 to 8956. [2024-11-08 19:05:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8955 states have (on average 1.4215522054718035) internal successors, (12730), 8955 states have internal predecessors, (12730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 12730 transitions. [2024-11-08 19:05:38,565 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 12730 transitions. Word has length 96 [2024-11-08 19:05:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:38,604 INFO L471 AbstractCegarLoop]: Abstraction has 8956 states and 12730 transitions. [2024-11-08 19:05:38,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:38,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 12730 transitions. [2024-11-08 19:05:38,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:05:38,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:38,606 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:38,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:05:38,606 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:38,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:38,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1933465538, now seen corresponding path program 1 times [2024-11-08 19:05:38,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:38,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012988108] [2024-11-08 19:05:38,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:38,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:05:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012988108] [2024-11-08 19:05:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012988108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:38,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:38,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319916333] [2024-11-08 19:05:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:38,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:38,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:38,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:38,813 INFO L87 Difference]: Start difference. First operand 8956 states and 12730 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:39,493 INFO L93 Difference]: Finished difference Result 23953 states and 34292 transitions. [2024-11-08 19:05:39,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:39,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 19:05:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:39,535 INFO L225 Difference]: With dead ends: 23953 [2024-11-08 19:05:39,535 INFO L226 Difference]: Without dead ends: 20965 [2024-11-08 19:05:39,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:39,544 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 867 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:39,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1121 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:39,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20965 states. [2024-11-08 19:05:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20965 to 11843. [2024-11-08 19:05:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11843 states, 11842 states have (on average 1.419692619489951) internal successors, (16812), 11842 states have internal predecessors, (16812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11843 states to 11843 states and 16812 transitions. [2024-11-08 19:05:40,239 INFO L78 Accepts]: Start accepts. Automaton has 11843 states and 16812 transitions. Word has length 96 [2024-11-08 19:05:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:40,240 INFO L471 AbstractCegarLoop]: Abstraction has 11843 states and 16812 transitions. [2024-11-08 19:05:40,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 11843 states and 16812 transitions. [2024-11-08 19:05:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:05:40,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:40,241 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:40,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:05:40,242 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:40,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash -681242236, now seen corresponding path program 1 times [2024-11-08 19:05:40,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:40,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012580465] [2024-11-08 19:05:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 19:05:40,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:40,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012580465] [2024-11-08 19:05:40,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012580465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:40,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:40,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:40,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367849252] [2024-11-08 19:05:40,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:40,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:40,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:40,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:40,460 INFO L87 Difference]: Start difference. First operand 11843 states and 16812 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:41,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:41,350 INFO L93 Difference]: Finished difference Result 26824 states and 38347 transitions. [2024-11-08 19:05:41,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 19:05:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:41,395 INFO L225 Difference]: With dead ends: 26824 [2024-11-08 19:05:41,395 INFO L226 Difference]: Without dead ends: 23836 [2024-11-08 19:05:41,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:41,401 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 965 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:41,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1042 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:41,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23836 states. [2024-11-08 19:05:42,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23836 to 14721. [2024-11-08 19:05:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14721 states, 14720 states have (on average 1.4183423913043478) internal successors, (20878), 14720 states have internal predecessors, (20878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14721 states to 14721 states and 20878 transitions. [2024-11-08 19:05:42,059 INFO L78 Accepts]: Start accepts. Automaton has 14721 states and 20878 transitions. Word has length 96 [2024-11-08 19:05:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:42,059 INFO L471 AbstractCegarLoop]: Abstraction has 14721 states and 20878 transitions. [2024-11-08 19:05:42,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 14721 states and 20878 transitions. [2024-11-08 19:05:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:05:42,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:42,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:42,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:05:42,062 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:42,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:42,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1408800776, now seen corresponding path program 1 times [2024-11-08 19:05:42,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:42,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235031919] [2024-11-08 19:05:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:42,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 19:05:42,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:42,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235031919] [2024-11-08 19:05:42,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235031919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:42,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531041067] [2024-11-08 19:05:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:42,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:42,260 INFO L87 Difference]: Start difference. First operand 14721 states and 20878 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:43,195 INFO L93 Difference]: Finished difference Result 29696 states and 42399 transitions. [2024-11-08 19:05:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:43,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 19:05:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:43,251 INFO L225 Difference]: With dead ends: 29696 [2024-11-08 19:05:43,251 INFO L226 Difference]: Without dead ends: 26694 [2024-11-08 19:05:43,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:43,260 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 914 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:43,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1129 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26694 states. [2024-11-08 19:05:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26694 to 17593. [2024-11-08 19:05:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17593 states, 17592 states have (on average 1.4166666666666667) internal successors, (24922), 17592 states have internal predecessors, (24922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17593 states to 17593 states and 24922 transitions. [2024-11-08 19:05:44,072 INFO L78 Accepts]: Start accepts. Automaton has 17593 states and 24922 transitions. Word has length 96 [2024-11-08 19:05:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:44,073 INFO L471 AbstractCegarLoop]: Abstraction has 17593 states and 24922 transitions. [2024-11-08 19:05:44,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:44,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17593 states and 24922 transitions. [2024-11-08 19:05:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:05:44,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:44,075 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:44,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:05:44,075 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:44,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash -706544570, now seen corresponding path program 1 times [2024-11-08 19:05:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479047427] [2024-11-08 19:05:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 19:05:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479047427] [2024-11-08 19:05:44,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479047427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:44,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:44,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:05:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851452324] [2024-11-08 19:05:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:44,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:05:44,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:05:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:05:44,274 INFO L87 Difference]: Start difference. First operand 17593 states and 24922 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:45,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:45,028 INFO L93 Difference]: Finished difference Result 32568 states and 46443 transitions. [2024-11-08 19:05:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:05:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 19:05:45,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:45,067 INFO L225 Difference]: With dead ends: 32568 [2024-11-08 19:05:45,067 INFO L226 Difference]: Without dead ends: 29566 [2024-11-08 19:05:45,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:05:45,079 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 798 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:45,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1274 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:05:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29566 states. [2024-11-08 19:05:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29566 to 20493. [2024-11-08 19:05:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20493 states, 20492 states have (on average 1.4156744095256686) internal successors, (29010), 20492 states have internal predecessors, (29010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20493 states to 20493 states and 29010 transitions. [2024-11-08 19:05:45,904 INFO L78 Accepts]: Start accepts. Automaton has 20493 states and 29010 transitions. Word has length 96 [2024-11-08 19:05:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 20493 states and 29010 transitions. [2024-11-08 19:05:45,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 20493 states and 29010 transitions. [2024-11-08 19:05:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:05:45,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:45,907 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:45,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:05:45,907 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:45,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:45,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2129899330, now seen corresponding path program 1 times [2024-11-08 19:05:45,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:45,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999396264] [2024-11-08 19:05:45,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:45,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:46,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:46,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999396264] [2024-11-08 19:05:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999396264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31777278] [2024-11-08 19:05:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:46,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:46,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:46,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:46,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:05:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:46,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:05:46,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:47,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:05:49,437 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:49,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31777278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:05:49,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:05:49,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-08 19:05:49,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629617830] [2024-11-08 19:05:49,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:05:49,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 19:05:49,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:49,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 19:05:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:05:49,441 INFO L87 Difference]: Start difference. First operand 20493 states and 29010 transitions. Second operand has 22 states, 22 states have (on average 10.363636363636363) internal successors, (228), 21 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:52,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:52,183 INFO L93 Difference]: Finished difference Result 83722 states and 119932 transitions. [2024-11-08 19:05:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 19:05:52,184 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.363636363636363) internal successors, (228), 21 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:05:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:52,251 INFO L225 Difference]: With dead ends: 83722 [2024-11-08 19:05:52,251 INFO L226 Difference]: Without dead ends: 63668 [2024-11-08 19:05:52,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:05:52,272 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1434 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:52,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1488 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 19:05:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63668 states. [2024-11-08 19:05:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63668 to 47954. [2024-11-08 19:05:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47954 states, 47953 states have (on average 1.4133422309344565) internal successors, (67774), 47953 states have internal predecessors, (67774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47954 states to 47954 states and 67774 transitions. [2024-11-08 19:05:53,920 INFO L78 Accepts]: Start accepts. Automaton has 47954 states and 67774 transitions. Word has length 99 [2024-11-08 19:05:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:53,921 INFO L471 AbstractCegarLoop]: Abstraction has 47954 states and 67774 transitions. [2024-11-08 19:05:53,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.363636363636363) internal successors, (228), 21 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 47954 states and 67774 transitions. [2024-11-08 19:05:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:05:53,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:53,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:53,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:05:54,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:54,125 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:54,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash -951468673, now seen corresponding path program 1 times [2024-11-08 19:05:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:54,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688558081] [2024-11-08 19:05:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:54,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:54,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:54,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688558081] [2024-11-08 19:05:54,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688558081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:05:54,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:05:54,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:05:54,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933355832] [2024-11-08 19:05:54,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:05:54,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:05:54,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:05:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:05:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:54,278 INFO L87 Difference]: Start difference. First operand 47954 states and 67774 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:05:55,314 INFO L93 Difference]: Finished difference Result 71253 states and 100678 transitions. [2024-11-08 19:05:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:05:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:05:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:05:55,357 INFO L225 Difference]: With dead ends: 71253 [2024-11-08 19:05:55,358 INFO L226 Difference]: Without dead ends: 23964 [2024-11-08 19:05:55,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:05:55,394 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 41 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:05:55,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:05:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23964 states. [2024-11-08 19:05:56,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23964 to 23614. [2024-11-08 19:05:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23614 states, 23613 states have (on average 1.3942319908524965) internal successors, (32922), 23613 states have internal predecessors, (32922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23614 states to 23614 states and 32922 transitions. [2024-11-08 19:05:56,404 INFO L78 Accepts]: Start accepts. Automaton has 23614 states and 32922 transitions. Word has length 99 [2024-11-08 19:05:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:05:56,404 INFO L471 AbstractCegarLoop]: Abstraction has 23614 states and 32922 transitions. [2024-11-08 19:05:56,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:05:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 23614 states and 32922 transitions. [2024-11-08 19:05:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:05:56,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:56,407 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:56,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:05:56,407 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:05:56,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:56,408 INFO L85 PathProgramCache]: Analyzing trace with hash -449639808, now seen corresponding path program 1 times [2024-11-08 19:05:56,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:56,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697515567] [2024-11-08 19:05:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:56,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:57,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:05:57,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697515567] [2024-11-08 19:05:57,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697515567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:05:57,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807286364] [2024-11-08 19:05:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:57,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:57,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:57,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:57,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:05:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:05:58,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:05:58,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:05:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:05:58,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:00,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:00,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807286364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:06:00,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:06:00,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-11-08 19:06:00,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379573888] [2024-11-08 19:06:00,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:06:00,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 19:06:00,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:00,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 19:06:00,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-08 19:06:00,365 INFO L87 Difference]: Start difference. First operand 23614 states and 32922 transitions. Second operand has 27 states, 27 states have (on average 9.777777777777779) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:03,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:03,180 INFO L93 Difference]: Finished difference Result 89571 states and 124884 transitions. [2024-11-08 19:06:03,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:06:03,181 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.777777777777779) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:06:03,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:03,257 INFO L225 Difference]: With dead ends: 89571 [2024-11-08 19:06:03,257 INFO L226 Difference]: Without dead ends: 66334 [2024-11-08 19:06:03,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=380, Invalid=1260, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:06:03,283 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 2195 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:03,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2195 Valid, 1037 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:06:03,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66334 states. [2024-11-08 19:06:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66334 to 61458. [2024-11-08 19:06:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61458 states, 61457 states have (on average 1.3785573653123322) internal successors, (84722), 61457 states have internal predecessors, (84722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61458 states to 61458 states and 84722 transitions. [2024-11-08 19:06:05,964 INFO L78 Accepts]: Start accepts. Automaton has 61458 states and 84722 transitions. Word has length 99 [2024-11-08 19:06:05,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:06:05,965 INFO L471 AbstractCegarLoop]: Abstraction has 61458 states and 84722 transitions. [2024-11-08 19:06:05,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.777777777777779) internal successors, (264), 26 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 61458 states and 84722 transitions. [2024-11-08 19:06:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:06:05,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:05,969 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:05,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 19:06:06,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:06,170 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:06:06,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash -781781954, now seen corresponding path program 1 times [2024-11-08 19:06:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792748555] [2024-11-08 19:06:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:06,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792748555] [2024-11-08 19:06:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792748555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471625578] [2024-11-08 19:06:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:06,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:06,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:06,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:06:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a47a3ba-dbc2-4498-a520-01aa7f7504d1/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:06:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:07,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:06:07,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:07,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:06:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:09,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471625578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:06:09,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:06:09,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-08 19:06:09,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033953124] [2024-11-08 19:06:09,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:06:09,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 19:06:09,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:09,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 19:06:09,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-11-08 19:06:09,186 INFO L87 Difference]: Start difference. First operand 61458 states and 84722 transitions. Second operand has 26 states, 26 states have (on average 9.5) internal successors, (247), 25 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:06:25,664 INFO L93 Difference]: Finished difference Result 592289 states and 824904 transitions. [2024-11-08 19:06:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-08 19:06:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.5) internal successors, (247), 25 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:06:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:06:26,662 INFO L225 Difference]: With dead ends: 592289 [2024-11-08 19:06:26,662 INFO L226 Difference]: Without dead ends: 531254 [2024-11-08 19:06:26,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2587 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1873, Invalid=7439, Unknown=0, NotChecked=0, Total=9312 [2024-11-08 19:06:26,798 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 3696 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3696 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 2625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:06:26,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3696 Valid, 2836 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 19:06:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531254 states.